18000853 has 8 divisors (see below), whose sum is σ = 19539968. Its totient is φ = 16483824.

The previous prime is 18000821. The next prime is 18000869. The reversal of 18000853 is 35800081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18000853 - 2⁵ = 18000821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18000803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3801 + ... + 7102.

It is an arithmetic number, because the mean of its divisors is an integer number (2442496).

Almost surely, 2^18000853 is an apocalyptic number.

18000853 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18000853 is a deficient number, since it is larger than the sum of its proper divisors (1539115).

18000853 is a wasteful number, since it uses less digits than its factorization.

18000853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11043.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 18000853 is about 4242.7412129424. The cubic root of 18000853 is about 262.0782791563.

The spelling of 18000853 in words is "eighteen million, eight hundred fifty-three", and thus it is an aban number.